Electric Devices TRIZ Cases

Moving-window voltage curves flag abnormal battery cells without pairwise comparison, reducing diagnosis time, complexity, and multi-cell errors.

Targeted battery discharge and cell symmetrization restore aging-related capacity loss in EV and hybrid vehicle batteries.

A shear panel and closed-section side rails absorb frontal collision loads while limiting rear deformation and stiffening lower arm supports.

Charge-discharge cycle matrices and recurrent neural networks improve supercapacitor SoH estimation despite non-linear degradation.

Time-windowed cell voltage slopes set normal bounds to detect battery abnormalities accurately, even when voltage differences are small.

Beam-shaped battery modules bonded into the vehicle floor improve volumetric efficiency, buckling strength, crash safety, and thermal isolation.

Pre-checking cable insulation and connection status enables safe HV power transfer from towing vehicle to trailer without major trailer rework.

Optocoupler current sensing detects welded-closed EV contactors by comparing actual and commanded states across high-voltage ranges.

Multiple current channels and onboard processing measure each load path in real time, enabling compact standby power detection even when the SoC is off.

Separate parallel DC/DC connection lines keep a vehicle low-voltage system powered while limiting fault propagation on a common traction bus.

A Hall sensor placed in a conductor constriction works with a shunt and redundant evaluation to improve battery current sensing at lower complexity.

Flight-phase-based charging delays full SOC in VTOL aircraft batteries, preserving rotor power availability while slowing battery deterioration.

Predictive control uses GPS, map, and traffic data to smooth PEM fuel cell transients, reduce power cycling, and extend stack life.

Battery-powered wading closes air valves to keep water out of the fuel cell stack, then removes moisture after flooded-road crossing.

When steering and wheel angles fall out of sync, power to travel-related devices is cut to prevent unintended vehicle movement.

Electrode lines inside a hollow insulator detect localized road-surface forces more accurately than pressure-based vehicle interference sensors.

Sensor fusion across battery enclosure zones classifies underside strike severity so the vehicle can evacuate or continue to a safe location.

Softly tuned battery pack mounts turn EV battery mass into a dynamic absorber that cuts frame vibration in the 5-25 Hz ride comfort range.

Active chassis potential matching keeps a floating EV power unit near ground potential and triggers fast shutdown when insulation faults prevent control.

A thermal model estimates battery cell temperatures after long parking and limits traction battery power to avoid overload from uneven cooling.

Failsafe switches let autonomous vehicle power domains share one backup source while isolating faulty domains to cut weight, cost, and complexity.

MPC-guided series and parallel switching balances SOC across battery strings and modules while adapting to changing power modes.

Multiple voltage criteria trigger DC grid breakers only on confirmed contact, cutting Y-capacitor shock energy while avoiding false trips.

Differentiated warnings for DC/DC converter and alternator faults help hybrid vehicle occupants stop or continue driving appropriately.

EIS-based hyper model calibration replaces slow DCIR tests to estimate battery state of power faster across charge, temperature, and aging states.

Voltage comparison across target and reference batteries detects internal shorts without SOC-based estimation, improving accuracy and reducing misjudgment.

Normalized battery health indicators and decision logic help distinguish electrolyte leakage, moisture ingress, and aging in lithium-ion packs.

A middle beam and mounting members redirect side-impact loads through the casing and vehicle cross beam to reduce battery deformation and leakage.

Voltage deviation trends during battery rest periods reveal micro short circuits more accurately than internal resistance monitoring.

A layered aluminum-steel shield in the battery case blocks heat and flame spread between traction battery modules while adding mechanical protection.

Drive power electronics generate multi-frequency AC for traction battery impedance spectroscopy, avoiding extra hardware and keeping the vehicle operational.

A selective air inlet/outlet path vents vehicle-induced wind from the duct, preventing surplus fuel cell generation without slowing air supply.

A network-shaped slit cooling channel drives turbulent flow around the stator core to improve motor heat dissipation without increasing size.

Monitors battery data while a vehicle is off to detect thermal events early and send remote alerts for faster safety response.

Speed paddles on the steering wheel let marine vessel operators adjust speed one-handed without reaching for small remote buttons.

Galvanic optical isolation replicates train speed sensor pulses for secondary control devices without feedback, extra sensors, or transient interference.

When regenerative braking is limited by high lateral force, this case triggers driver alerts or foundation brakes to maintain safe deceleration.

Integrated reinforcing ribs and through-fasteners stiffen the battery lower box side beam to limit lateral-impact deformation and cell compression.

Opposing protrusions and buffer members absorb underbody impact on a vehicle power storage device while improving case rigidity.

Mixed battery shapes fill oblique pack regions more efficiently, raising capacity and energy density while supporting power, safety, and cost goals.

Estimating SOC and open-circuit voltage before parallel connection helps vehicle battery packs avoid circulating currents, spikes, and power loss.

Staggered MOSFET turn-on in series battery packs prevents simultaneous switch conduction, avoiding direct short circuits and arc damage.

Measures end-plate displacement to detect battery cell swelling and adjust stack pressure, helping maintain performance and battery life.

Electrically separate eVTOL DC buses with converter-based backup switching limit noise propagation and maintain low-voltage power after failures.

Cuts off or redirects back-driven travel motor energy in a push mower to prevent abnormal discharge, damage, and unsafe operation.

Thermal load and coolant status are evaluated together to pinpoint cooling faults and component-level failures in vehicle systems.

Variable wall thickness in an extruded side sill reinforcement improves battery protection and collision energy absorption without excess weight.

A fixed outer frame with removable battery boxes enables below-vehicle service while maintaining crash load support, sealing, and pack scalability.

Magnetic flux sensors estimate EV component current from emission peaks, enabling energy optimization and maintenance detection.